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NEET 2018 · BiologyPrevious Year Question

Which of the following hormones can play a significant role in osteoporosis?

Answer: (A) Estrogen and Parathyroid hormone. Answer: (a) Estrogen and Parathyroid hormone Solution: Both estrogen and parathyroid hormone (PTH) influence bone and calcium balance, so both relate to osteoporosis.

  1. A.Estrogen and Parathyroid hormone✓
  2. B.Progesterone and Aldosterone
  3. C.Aldosterone and Prolactin
  4. D.Parathyroid hormone and Prolactin

Correct Answer

(A) Estrogen and Parathyroid hormone

Solution & Explanation

Answer: (a) Estrogen and Parathyroid hormone Solution: Both estrogen and parathyroid hormone (PTH) influence bone and calcium balance, so both relate to osteoporosis. PTH acts on bones to stimulate bone resorption (demineralisation) and raise blood Ca2+, while a fall in estrogen after menopause promotes bone loss — making these the two hormones tied to osteoporosis. NCERT Reference: Chapter 19, Page 243, Line(s) 26–28 — "Parathyroid hormone (PTH) increases the Ca2+ levels in the blood. PTH acts on bones and stimulates the process of bone resorption (dissolution/ demineralisation)."

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